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http://www.hack4fun.eu/2012/05/rtl-sdr-backtrack-5-r2
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http://hackaday.com/2011/07/19/jeri-ellsworth-builds-a-software-radio
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http://www.rfm.com/corp/appdata/antenna.pdf
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http://radiof6kfa.free.fr/rep_site_kfa/html/technique_1.htm
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http://interface.khm.de/index.php/lab...nts/arduino-frequency-counter-library
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http://blog.makezine.com/archive/2009...n_ham_radio.html?CMP=OTC-0D6B48984890
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http://www.sdr-kits.net/USB/USB_Description.html#Ordering
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http://ea3fxf.googlepages.com/flea
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http://mjrainey.googlepages.com/dasderelicht